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Model
PG-M20X
Pages
42
Size
696.94 KB
Type
PDF
Document
Handy Guide
Brand
Device
Projector / Version 1.4
File
pg-m20x.pdf
Date

Sharp PG-M20X Handy Guide ▷ View online

Electrical Adjustments
Version 1.4
Issue 04/2006
29
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
2. Select the following group and
subject.
Group: VIDEO
Subject: N-COLOR
7
Adjustment of PAL colour
saturation
1. Feed the PAL colour bar signal.
2. Select the following group and
subject.
Group: VIDEO
Subject: P-COLOR
1. Confirm the fixed value.
Fixed value: 59
Electrical Adjustments
Version 1.4
Issue 04/2006
30
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
8
Adjustment of SECAM
colour saturation
1. Feed the SECAM colour bar signal.
2. Select the following group and
subject.
Group: VIDEO
Subject: S-COLOR
1. Confirm the fixed value.
Fixed value: 59
9
Adjustment of COMPO G
brightness
1. Input signal: 0% grey pattern signal
(480I)
2. Select the following group and
subject.
Group: COMPO
Subject: G-BRIGHT
1. Feed the signal to INPUT 1.
Make adjustment so that some bits should
be missing in the picture.
10
Adjustment of COMP CR-
Offset
1. Feed the colour difference signal
(480I): Y 0% brightness, Cb and Cr
0% white patterns.
Group: COMPO
Subject: AUTO
1. After signal input, select AUTO using the
set's switch or the remote controller's button
for automatic adjustment.
11
Automatic Adjustment of
RGB white balance
1. Feed the 50% grey pattern signal
(XGA, 60 Hz [PG-M20X]/SVGA,60 Hz
[PG-M20S]).
2. Select the following group and
subject.
Group: DLP
Subjects: R1-GAIN (Red)
B1-GAIN (Blue)
1. Adjust R-1 GAIN and B1-GAIN so that x-
value should be 266±3 and y-value 320±3.
12
Automatic Adjustment of
SRGB white balance
1. Feed the 50% grey pattern signal
(XGA, 60 Hz [PG-M20X]/SVGA,60 Hz
[PG-M20S]).
2. Select the following group and
subject.
Group: DLP
Subjects: S-R1-GAIN (Red)
S-G1-GAIN (Green)
S-B1-GAIN (Blue)
1. Set the value of S-R1-GAIN to 34.
2. Adjust S-G1-GAIN and S-B1-GAIN so that
x-value should be 310±3 and y-value 335±3.
13
Automatic adjustment of
video white balance
1. Feed the 50% grey pattern signal
(NTSC, burst signal).
2. Select the following group and
subject.
Group: DLP
Subjects: V-R1-GAIN (Red)
V-B1-GAIN (Blue)
1. Adjust V-R1-GAIN and V-B1-GAIN so that
x-value should be 265±3 and y-value should
be 298±3.
14
Automatic adjustment of
DTV white balance
1. Feed the 50% grey pattern signal
(480I, colour difference signal).
2. Select the following group and
subject.
Group: DLP
Subjects: C-R1-GAIN
C-B1-GAIN
1. Adjust C-R1-GAIN and C-B1-GAIN so that
x-value should be 263±3 and y-value should
be 295±3.
15
Adjustment of
DLP voltage (For
reference)
1. Read voltage rank of DLP
description.
2. Set the switch corresponding to the
rank which has been read. (on the
formatter PWB)
1. Carry out adjustment when DLP chip has
been replaced or combination of chip and
formatter has been changed.
2. Rank: B C D E
Setting value: 1 2 3 4
Electrical Adjustments
Version 1.4
Issue 04/2006
31
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
16
Confirmation and re-
adjustment of white balance
1. The adjusting conditions for each
item are as follows:
For RGB input, see Item 11
For SRGB input, see Item 13
For video input, see Item 14
For DVT input, see Item 12
Confirm that there is no deviation in white
balance from that of the monitoring
equipment.
For readjustment, proceed in the order of
RGB input, video input and DTV input.
17
Confirmation of colour-
related operation
1. Receive the colour bar signal.
1. Select L1 in the process mode.
Check the performance of colour and tint.
18
Confirmation of picture-
related operation
1. Receive monoscope pattern signal.
1. Select L2 in the process mode.
Check Picture, Brightness and Sharpness.
19
Confirmation of RGB
1. Receive the RGB signal.
1. Select L4 on the process mode.
Check Picture, Brightness, Red, Blue, Clock,
Phase, H-POS and V-POS.
20
Confirmation of off-timer
operation
1. Select OFF in the process mode.
Confirm that the off-timer starts with 5-
minute display, counts 1 minute for 1
second, and turns off when 0 minute is
displayed.
21
Confirmation of thermistor
operation
1. Heat the thermistor by dryer.
1. Confirm that the temperature is displayed.
22
Automatic sync operation
1. Receive the phase checking
pattern signal.
1. Confirm that Clock, Phase, H-POS and V-
POS can be automatically adjusted in the
VGA/S-VGA/XGA mode.
23
Confirmation of USB
operation
Connect the set to a personal
computer by USB cable.
Using the remote controller, make sure that
feed and return operations are effective on
the display of the personal computer.
24
Factory settings
1. 
Make the following settings.
How to Adjust the PC I/F unit
1. Initialisation of EEPROM
1) Press SW2002 to enter the process mode.
2) Execute S1 on the SSS menu. (By S1, all the contents of EEPROM are initialised.)
3) Confirm that the program version "Ver. XXX" has become the latest one
2. Adjusting items
1) Adjustment of RGB drive/gain
(1) Feed the window pattern signal that has 100% and 0% signals.
(2) Select AUTO among the A/D items in the process mode and carry out
adjustment.
Electrical Adjustments
Version 1.4
Issue 04/2006
32
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Entering the adjustment process mode
There are following two methods.
• 
Press the SW2001 on the KEY PWB unit.
• 
Press the follwing keys in this order.
AV MUTE→AV MUTE→Adj up→Adj down→ENTER→ENTER→MENU
Adjustment mode process menu
 
Group
Sub Group
Subject
Adjust PC Image
A/D
R-BRIGHT
G-BRIGHT
B-BRIGHT
R-D
B-D
G-D
AD-AUTO
Adjust DLP Image
DLP
R1-BLK
R1-GAIN
G1-BLK
G1-GAIN
B1-GAIN
CW-INDEX
S-R1-GAIN
S-G1-GAIN
S-B1-GAIN
C-R1-GAIN
C-B1-GAIN
V-R1-GAIN
V-B1-GAIN
Adjust VIDEO Image
VIDEO
PICTURE
BRIGHT
TINT
N-COLOR
P-COLOR
S-COLOR
STAT-GAIN
VIDEO-AUTO
Adjust Component Image
DTV
G-BRIGHT
CB-OFFSET
CR-OFFSET
COMPO-AUTO
Process mode
LINE
L1
L2
L3
OFF
TEMP OFF
SENSOR CHECK
INTIAL SETTING
SSS
TIME
S1
S2
S3
S4
S5
Sample Pattern
PATTERN
RGB
RGB(50)
CROSS
FOCUS
SETP
COLOR
CHR
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